Home / 125,126,999.20-187,690,498.80-86,863,247.20

Finding the Fourth Proportional to 125,126,999.20, 187,690,498.80 and 86,863,247.20

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Solution

The fourth proportional to 125,126,999.20, 187,690,498.80 and 86,863,247.20 is: 130,294,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,126,999.20 : 187,690,498.80 = 86,863,247.20 : x
  2. Step 2: Convert to fraction form
    125,126,999.20/187,690,498.80 = 86,863,247.20/x
  3. Step 3: Cross multiply
    125,126,999.20x = 187,690,498.80 × 86,863,247.20
  4. Step 4: Simplify right side
    125,126,999.20x = 16,303,406,194,355,704
  5. Step 5: Solve for x
    x = 16,303,406,194,355,704/125,126,999.20
  6. Step 6: Final answer
    x = 130,294,870.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.